i'm chris matthews up in boston. let me start with this petraeus sex story. sex, sex, sex, that's what it's about. the testy, seamy search for something wild in the button down world of spies, spooks, whatever they call themselves these days, and the shined boots and chest medals of the combat elite. a general has an affair with a young reporter. that young reporter spies some competition, tells her to bug off. meanwhile, that competition becomes the target of tens of thousands of e-mails from yet another general. what a soap opera. but guess what? one of the generals, actually an ex-general, is head of the cia, or just was. the other general, the one sending the e-mail by the bushel, is our commander in charge in afghanistan. if this were a british plot, and it sure is kinky enough, we'd be calling it "carry on generals," but there are stakes. and one of them is our country's security. let's not forget as we dig deeper that fact into this plot tonight. joining us right now is "washington post" reporter sari horwitz and david woods, senior military correspond